Who needs to wander into the back alleys of the Dark Web to buy drugs? You can self-medicate for free on Facebook, in broad daylight, clear of legal encumbrance or the criminal element.

The drug of choice, of course, is the little hits of dopamine we get from social validation. In an interview with Axios, ex-president of Facebook Sean Parker said that the main goal from the start has been to get and keep people’s attention, and if hacking people’s psychological vulnerabilities is the way to do it, well, then hacking people’s brains is exactly what they’re happy to do.